Spinel
Redfern S A T, Harrison R J, O'Neill H St C, Wood D R R
American Mineralogist 84 (1999) 299-310
Thermodynamics and kinetics of cation ordering in MgAl2O4 spinel up to 1600 C
from in situ neutron diffraction
Data collected at ISIS, Rutherford Appleton Laboratory, U.K.
T = 1573 K on heating cycle, MgAl2O4
_database_code_amcsd 0002155
8.17859 8.17859 8.17859 90 90 90 *Fd3m
.125 .125 .125
atom       x       y       z   occ  Biso
Mg      .125    .125    .125  .745 2.106
Al      .125    .125    .125  .255 2.106
Al        .5      .5      .5 .8725 1.568
Mg        .5      .5      .5 .1275 1.568
O    .260865 .260865 .260865       2.108